Improvement in snow-plows



UNITED STATES PATENT ERIK BROWN, OF MEDICINE BOW, WYOMING TERRITORY.

IMPROVEMENT IN SNOW-FLOWS.

Specification forming part of Letters Patent No. 180,537, dated August1, 1876 application filed May 6, 1876.

To all whom it may concern:

Be it known that I, ERIK BROWN, of Medicine Bow, in the county of Uarbonand Territory of Wyoming, have invented a new and valuable Improvementin Snow-Flows; and I do hereby declare that the following is a full,

clear, and exact description of the construction and operation of thesame, reference being had to the annexed drawings, making a part of thisspecification, and to the letters and figures of reference markedthereon.

Figure 1 of the drawings is a representation of a side elevation of mysnow-plow, and Fig. 2 is a plan View thereof.

This invention has relation to means for clearing railroad-tracks ofsnow; and the nature of my invention consists in rotating drums, havingcurved obliquely arranged blades on their peripheries, in combinationwith a shovel or scoop, which is extended backward and upward, so as toform shields in rear of said drums, as will hereinafter be explained.

In the annexed drawings, A designates a pilot-truck which is intended tobe used in front of a ldc'omotive, and is suitably connected thereto. Onthis truck A I shall, in practice, apply a donkey-engine, which isdriven by steam taken from theboiler of the locomotive. This engine issuitably connected by a pitmanrod to the crank-shaft of a wheel, B,which is journaled in pillow-blocks on the pilot-truck. The teeth ofwheel B engage with the teeth of a smaller wheel, 0, on the shaft a.This shaft to has its end bearings in arms D D, which "are rigidlysecured to the sides of the pilottruck. Shaft a is also sustained by abifurcated standard, b, one end of which is secured to the pilot-truck,and the other end is secured to a curved shovel, E, which extendsbackward and upward to form a shield, E, which I will hereinafter againrefer to. I

Below the shovel E is a truck, F, the frame of which has a standardsecured to it, which extends up through the shovel, and is rigidlysecured to standard I). By these means the shaft 01. is firmlysustained, and will resist any weight thrown upon it during theoperation of clearing a track.

G G designate drums, which are applied on the shaft a, and arranged onopposite sides of the spur-wheel C.

On the periphery of each drum G, and arranged equidistant from eachother, are flanges or blades .9, which are oblique to the axes of thedrums, and which are curved in such manner that they will throw the snowlaterally from the shovel E.

On one side of each blade 9 is an opening, it, which allows snow to passfreely through it, thus preventing the drums from clogging.

It will be seen from the above description that the shovel E gathers thesnow from the track, and that the flanged drums G G discharge the snowfrom the shovel as rapidly as it is gathered thereon, leaving the trackclear.

In practice 1 shall support the front portion of the shovel by means ofwheels i, which will roll upon the rails. The shields E, which areextensions of the shovel, extend up in rear of the drums G, and preventsnow from being thrown backward upon the pilot-truck A.

What I claim as new, and desire to secure by Letters Patent, is-

1. The shovel E, having extension-shields E, in combination with thecurved flanged drums G and gear-wheels B 0, all arranged, constructed,and operated in the manner and for the purpose set forth.

2. The combination, in a snow-plow, of the curved shovel E, extendingbackward, up ward, and rearward, and terminating in the extensions E,and concentric with the flanged drums G, operating substantially asdescribed, and for the purpose set forth.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

ERIK BROWN.

Witnesses: i V

P. N. NELSON, D. P. HUGHS.

